This is a note to let you know that I've just added the patch titled
MIPS: jump_label: Fix compat branch range check
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-jump_label-fix-compat-branch-range-check.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 64ac0befe75bdfaffc396c2b4a0ed5ae6920eeee Mon Sep 17 00:00:00 2001
From: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Date: Thu, 3 Nov 2022 15:10:53 +0000
Subject: MIPS: jump_label: Fix compat branch range check
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From: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
commit 64ac0befe75bdfaffc396c2b4a0ed5ae6920eeee upstream.
Cast upper bound of branch range to long to do signed compare,
avoid negative offset trigger this warning.
Fixes: 9b6584e35f40 ("MIPS: jump_label: Use compact branches for >= r6")
Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/kernel/jump_label.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kernel/jump_label.c
+++ b/arch/mips/kernel/jump_label.c
@@ -56,7 +56,7 @@ void arch_jump_label_transform(struct ju
* The branch offset must fit in the instruction's 26
* bit field.
*/
- WARN_ON((offset >= BIT(25)) ||
+ WARN_ON((offset >= (long)BIT(25)) ||
(offset < -(long)BIT(25)));
insn.j_format.opcode = bc6_op;
Patches currently in stable-queue which might be from jiaxun.yang@xxxxxxxxxxx are
queue-6.0/mips-jump_label-fix-compat-branch-range-check.patch
